This Solicitation opportunity from Iowa was posted on September 14, 2025. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

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Cal883301A & Cal883220A Nutrient Reduction Wetlands

Closed

009-RFB-WRBWL-CY25-12State & Local

Submission Closed10/08/2025, 12:00:00 AM UTC

Contract Overview

Solicitation details, issuing organization, response deadlines, documents, and interested companies for this government contract opportunity.

Active Opportunities Like This One

NAICS: 237990

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SLED

ADVANCE NOTICE: Rail Modernization Program

Solicitation # WMATA-0000010871

The Washington Metropolitan Area Transit Authority has issued an advance notice for the Rail Modernization Program under solicitation number WMATA-0000010871. This solicitation is categorized under NAICS code 237990, focusing on specialized trade contractors for rail infrastructure improvements. The notice was posted on October 29, 2026, with a response deadline set for September 30, 2027. Interested parties can find further details and manage bids through the official WMATA supplier portal.

Washington Metropolitan Area Transit Authority

POSTED

DEADLINE

Sanitary Sewer Installation (Open Cut)This subcontract opportunity with Cleary Construction, Inc. involves the installation of sanitary sewer piping for the CSO 70 Sewer Improvements project. The scope of work includes open-cut excavation and the installation of PVC piping in diameters ranging from 6 to 30 inches, as well as extra depth excavation for pipes and manholes. Additionally, the contractor will be responsible for installing precast concrete riser rings and completing the CSO regulator fit-out to deliver a fully installed and tested sanitary sewer system. The solicitation is designated as a small business set-aside, welcoming applications from SBA certified Veteran Owned, Service-Disabled Veteran Owned, Women-Owned, and HUBZone small businesses. Interested parties must submit their responses by December 4, 2026. The project falls under NAICS code 237990 and is focused on critical infrastructure improvements.

Cleary Construction, Inc.

POSTED

DEADLINE

Surge Tank and Standpipe ConstructionThis subcontract opportunity with Garney Companies, Inc. involves the construction of specialized surge control infrastructure for projects managed by the Charles County Government. The scope of work focuses on the delivery, construction, and commissioning of surge tanks and standpipes specifically designed to prevent water hammer. The opportunity is set aside for SBA certified Women-Owned Small Businesses and Disadvantaged Business Enterprises under NAICS code 237990. Interested parties must submit their responses by November 9, 2026.

Garney Companies, Inc.

POSTED

DEADLINE

ALTA, RIVERVIEW, AND KINGS CANYON HIGH WELL DRILLING PHASE

Solicitation # alta-riverview-kings-canyon-high-well-drilling-phase

The Alta, Riverview, and Kings Canyon High Well Drilling Phase is a solicitation issued for Project No. 1000316-001C on behalf of the Kings Canyon Unified School District. The project involves well drilling operations located across Reedley, Parlier, Dinuba, and Fresno, California. This opportunity is categorized under NAICS code 237990 and is managed through Anthony J. Prieto Water Well Drilling, Inc. This solicitation is specifically set aside for small businesses, including SBA certified Veteran Owned, Service-Disabled Veteran Owned, Women-Owned, and HUBZone Small Businesses. The posting date is October 29, 2026, with a response deadline set for November 10, 2026. Interested parties may contact Jennah Castagna for further information regarding the submission process.

Anthony J. Prieto Water Well Drilling, Inc.

POSTED

DEADLINE

Construction of The Recharge Master Plan Update (RMPU) Basin Improvements Project - Montclair Basin Improvements

Solicitation # construction-recharge-master-plan-update-rmpu-basin-improvements-project-montclair-basin-0

The Recharge Master Plan Update Basin Improvements Project involves the construction of two drop inlet diversion structures across the 25-foot-wide concrete San Antonio Creek Channel in Montclair, California. The scope of work includes excavating 8 to 10 feet below the channel floor, installing steel debris grates, and fitting wall-mounted steel gates on the east sides of the structures. Additionally, the project requires the installation of 4-foot-diameter discharge pipelines leading to Montclair Basins 2 and 3, which will be covered by 3 feet of soil and terminate in concrete outlet structures designed for flow dissipation. The project also encompasses the delivery of complete electrical, instrumentation, and SCADA integration to manage gate actuation, with programming limited to Technical Systems, Inc. or E Technologies Group. This solicitation, managed by Granite Construction Company, has a response deadline of November 5, 2026. Interested parties should coordinate with the primary point of contact, Andrew Burk, regarding this infrastructure improvement effort.

Granite Construction Company

POSTED

DEADLINE

ARWA Carrizo System Expansion: Well Drilling

Solicitation # arwa-carrizo-system-expansion-well-drilling

The Alliance Regional Water Authority is seeking bids for the Carrizo System Expansion project focusing on well drilling services located in Rosanky, Texas. This solicitation, identified as ARWA IFB Number 2026-001, is managed by Hydro Resources - Mid Continent, Inc. and falls under NAICS code 237990. The opportunity is specifically set aside for Small Businesses and Disadvantaged Business Enterprises. Interested parties must submit their responses by the deadline of November 3, 2026. Primary coordination for this contract is handled by Amy Majors.

Hydro Resources - Mid Continent, Inc.

POSTED

DEADLINE

Construction of The Recharge Master Plan Update (RMPU) Basin Improvements Project - Montclair Basin Improvements

Solicitation # construction-recharge-master-plan-update-rmpu-basin-improvements-project-montclair-basin

Empire Equipment Service, Inc. is soliciting quotes for the Construction of The Recharge Master Plan Update Basin Improvements Project, specifically focusing on the Montclair Basins 2 and 3 Diversion Improvements at the San Antonio Creek Channel in Montclair, California. This project is being conducted for the Inland Empire Utilities Agency and falls under NAICS code 237990. The opportunity is specifically seeking certified DBE and DVBE subcontractors and suppliers, with set-asides available for various small business categories including Veteran Owned, Service-Disabled Veteran Owned, Women-Owned, and HUBZone Small Businesses. Interested parties must submit their responses by November 5, 2026. Primary inquiries should be directed to Gio Marquez via the provided estimating email or phone contact.

Empire Equipment Service, Inc.

POSTED

DEADLINE

Site Compliance and Improvements - Patton Landing

Solicitation # site-compliance-improvements-patton-landing

The State of California Department of General Services is seeking bids for the Site Compliance and Improvements project at Patton Landing, located in Carnelian Bay, Placer County. This solicitation, identified by Project Number 13891 and Event ID 0000040533, focuses on site compliance and infrastructure enhancements under NAICS code 237990. The opportunity is specifically set aside for SBA certified Service-Disabled Veteran Owned Small Businesses and Disadvantaged Business Enterprises. Interested parties must submit their responses by the deadline of November 10, 2026. Primary coordination for this project is managed through Nayvi Waite at Resource Development Company LLC.

Resource Development Company LLC

POSTED

DEADLINE

Structural Repair at NCMT Berths 24-3 and 24-4, CA

Solicitation # structural-repair-ncmt-berths-24-3-24-4-ca

This solicitation, issued by Griffith Company, concerns structural repair work at NCMT Berths 24-3 and 24-4 located in California. The scope of work involves the demolition and removal of existing concrete decks, pile caps, and appurtenances, followed by the construction of a new reinforced concrete deck. Additionally, the project requires the repair of existing piles, the installation of pile jackets, and the replacement of various waterfront elements, including bull rails, wale systems, fenders, and mooring hardware such as bollards. This opportunity is set aside for small businesses under NAICS code 237990. Interested parties must submit their responses by the deadline of November 4, 2026. For further inquiries, the primary point of contact is Savana Powell.

POSTED

DEADLINE

Agricultural INNOVATION Farm Project for San Marcos Unified SD

Solicitation # 2026-21

The San Marcos Unified School District is soliciting bids for the Agricultural INNOVATION Farm Project (Solicitation 2026-21) located at 99 Cassou Rd, San Marcos, California. The project scope involves the demolition of an abandoned electrical pole, water pump, and fencing, followed by the installation of underground water and electrical utilities, irrigation lines, a gravel service road, shade structures, storage containers, arbors, and designated planting areas. Work must be performed in strict accordance with the technical specifications, project drawings, and soil report. The estimated period of performance begins December 1, 2026, with a required completion date of April 1, 2027. The contract will be awarded to the lowest responsible bidder. Qualified bidders must hold a valid California Contractor's License and be registered with the California Department of Industrial Relations (DIR), as the project is subject to prevailing wage requirements. Submission requirements include a bid bond for 10 percent of the contract amount, a non-collusion declaration, and references, all submitted via the OpenGov e-procurement portal by November 2, 2026. The successful contractor must provide performance and payment bonds equal to 100 percent of the contract value and adhere to a 3 percent Disabled Veteran Business Enterprise (DVBE) participation goal. All materials must be delivered in original packaging and comply with UL 969 marking and labeling standards.

Curriculum and Instruction

POSTED

DEADLINE

Water Treatment Plant Maintenance Package ‘A’ Degasifier Package (Project No. 25-4261A)

Solicitation # IFB-395-26-JM

The City of Hollywood, Florida, is soliciting bids under IFB-395-26-JM (Project No. 25-4261A) for the Water Treatment Plant Maintenance Package A Degasifier Package. The project involves the replacement of packing media in three degasifiers (units 2, 3, and 4) at the Water Treatment Plant located at 3441 Hollywood Boulevard. The scope of work includes power washing vessel interiors, replacing media support grids and differential pressure gauges, vessel disinfection, and resealing access doors. To maintain continuous plant operations, work must be performed on one unit at a time. The project requires a prime contractor holding an active Florida General Contractor license, a project manager with at least five years of experience in similar projects, and a factory-trained service technician for field performance testing. The contract follows a strict timeline with substantial completion required within 180 calendar days and final project closeout within 210 calendar days from the Notice to Proceed. Bidders must provide a bid guaranty of 5 percent of the bid amount, and the successful awardee must provide performance and payment bonds equal to 100 percent of the contract price. Award will be granted to the lowest responsive and responsible bidder. Key financial terms include a City Contingency Allowance of 86,000 dollars, with mobilization and demobilization capped at 5 percent and 2 percent of the cost, respectively. The final bid submission deadline was extended to November 18, 2026, at 3:00 PM via the OpenGov e-Procurement Portal.

POSTED

DEADLINE

South Reservoir and Booster Building ConstructionThis subcontract involves the construction of the South Reservoir and a re-chlorination and booster pump building for water system projects managed by the Adams Lake Indian Band in Canada. The selected contractor will be responsible for executing the building shell construction, installing re-chlorination systems, and integrating booster pumps to ensure a fully operational facility. Due to the technical nature of the project, specialized expertise in chlorination equipment is required. The project is categorized under NAICS code 237990 and is being facilitated through the Province of British Columbia. Interested parties must submit their responses by the deadline of December 18, 2026. The ultimate goal of the contract is the delivery of a completed South Reservoir and a functional Booster Building to support the local water infrastructure.

Adams Lake Indian Band

POSTED

about 15 hours ago

DEADLINE

in about 2 months

AI Contract Overview

The contract involves the development and implementation of two nutrient reduction wetlands in Iowa, specifically identified as Cal883301A and Cal883220A. The project is managed by the Iowa Department of Administrative Services and is aimed at improving water quality through nutrient reduction efforts. The solicitation, posted on September 14, 2025, invites qualified bidders to submit proposals by October 8, 2025, with the contract value estimated between $200,000 and $260,000. The project falls under NAICS code 237990, which pertains to other heavy and civil engineering construction, indicating a focus on large-scale environmental infrastructure work. Interested parties can contact Tracy Bruun via email or phone for further details or to submit their bids. The procurement process is open for competitive bidding, and additional information can be accessed through the provided online link.